For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Discount rate used by lessee to determine present value of operating lease payments.

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Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of operating lease expense. Excludes sublease income.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of lessee's right to use underlying asset under operating lease.

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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Commitments and Contingencies - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Oct. 01, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Operating lease expense		$ 580
Operating lease payments			$ 297
Estimated increase total assets, upon adoption	$ 3,117	3,117
Estimated increase total liabilities, upon adoption	$ 3,314	3,314
Revenues		$ 12,827	$ 12,557
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Estimated increase total assets, upon adoption				$ 3,376	$ 99
Estimated increase total liabilities, upon adoption				$ 3,578	$ 111
Incremental borrowing rate				6.00%	7.75%
Minimum
Lessee, Lease, Description [Line Items]
Term of contract	1 year	1 year
Renewal term	12 months	12 months
Maximum
Lessee, Lease, Description [Line Items]
Term of contract	4 years	4 years
Renewal term	5 years	5 years
Professional and other services \| Major Customer
Lessee, Lease, Description [Line Items]
Revenues	$ 700
Revenue
Lessee, Lease, Description [Line Items]
Concentration risk, percentage		100.00%	100.00%
Revenue \| Professional and other services \| Major Customer
Lessee, Lease, Description [Line Items]
Concentration risk, percentage	13.00%	6.00%